Hi,
we have apaches as reverse proxies for some tomcat and wso2-application servers.
We get this error message on a high-load-webserver:
[proxy_http:error] [pid 13256:tid 47013272524544] (11)Resource temporarily unavailable: [client 172.31.0.142:21815] AH01110: error reading response
And we have no clue, which resource is unavailable and what to do against it.
Apache-2.4.10 / apr-1.5.1
Ulimit of apache-user:
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 46666
max locked memory (kbytes, -l) 655360
max memory size (kbytes, -m) unlimited
open files (-n) 655360
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) unlimited
cpu time (seconds, -t) unlimited
max user processes (-u) 655360
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
$ cat /proc/sys/kernel/threads-max
2065067
- So, I don’t see any visible shortage of anything.
Any ideas how to find the reason for this error ?
Uli
